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Seiko

Seiko 5 ‘Green Zone’ Midfield Sports Style

SRPJ85K1

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£250.96
RRP £290.00
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In addition to our 30 day returns policy, all items purchased from 1st October 2026 can now be returned until 15th January 2027, terms apply.
Backorder - expected in approx November 2026 Place an order now to avoid disappointment
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Product Description

This collection has been created with a 36mm case; an ideal size for Field watch fans and traditional Seiko 5 enthusiasts. With the combination of Arabic numbers and different spot and baton markers, ‘Midfield’ expresses a sports aesthetic enhanced by its durable stainless-steel case and “Green zone” khaki coloured nylon bracelet.

The Seiko 5 Sports ‘Field’ collection was created with an ‘in the field’ military design – taking inspiration from a style originally called a ‘trench watch,’ created to be robust and reliable in tough conditions – echoing the Seiko 5 Sports characteristics.

Seiko 5 Sports is known for over fifty years of reliability, durability, performance and value. ‘’5’’ represents the original five key features of every Seiko 5 still present today: Automatic movement, Day-date display, Water Resistance, Recessed crown and Durable case and bracelet.

Model Specifications SRPJ85K1:

  • This watch exhibits a black dial with beige Arabic numeral indices and grey luminous hour and minute hands alongside a red-tipped second hand. 
  • The dial also features a weekday and date display at 3 o'clock. 
  • Curved Hardlex crystal protects the dial. 
  • A stainless steel case frames the dial. It measures 36.37mm in diameter. 
  • The watch is secured using a dark green nylon strap. 
  • An automatic movement powers the watch. It provides up to 41 hours of power reserve. 
  • This model is water resistant up to 100 metres (10 bar). 
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Product Specifications
Gift For / Occasion
Valentine's Day
Gender
Men's Watches, Women's Watches
Movement & Power
Automatic Mechanical
Movement Calibre
4R36
Mechanical Power Reserve
up to 41 hours
Type
Gift
Features
Glowing Markers, Glowing Hands, Day Display, Date Display
Strap Material
Fabric
Case Material
Stainless Steel
Case Shape
Circle
Display Type
Analog
Dial Colour
Black
Strap Colour
Khaki
Case Width
36.37 mm
Case Depth
12.52 mm
Strap Width
18 mm
Hour Markers
Numbers
Water Resistance
100 metres
Delivery & Returns
Free delivery is available on all UK orders - click for information about delivery methods & international pricing
For items listed as in stock, your order should be completed before 4:00pm (Monday-Friday) for us to despatch the same day or before 11:30am on Saturday for delivery Monday. Please note that all orders must pass our security policy before they are despatched and we must be able to take payment successfully, if this is not possible we will email or send an SMS with further instructions. For queries and delivery questions please feel free to call us on 01926 298499.
For other items, a delivery estimate will be shown where possible. If we feel we are unable to adhere to the timescale after you place your order we will contact you to make you aware and allow you to change your order if necessary. Items will be sent by your chosen delivery method once they are back in stock. For UK orders paid by card, Apple Pay or Google Pay we do not charge you until we are about to despatch your order; PayPal, Amazon Pay, Klarna, finance and international orders are charged when the order is placed.
Click & Collect from a local Post Office
We now offer Click and Collect to over 10,000 UK Post Offices. Simply select the option during checkout and enter your postcode to find your closest Post Office. We will send the package using Royal Mail Tracked or Special Delivery (next day) and once your package is ready to collect an email will be sent from Royal Mail (proof of ID will be required). Please note it is not possible to use PayPal or Amazon checkout with this delivery option.
Returns Policy

In addition to our 30 day returns policy, all items purchased from 1st October 2026 can now be returned until 15th January 2027, terms apply.

We aim for you to be absolutely delighted with your purchase and therefore offer you 30 days to change your mind on your purchase. You may do this by using the form provided with your order or otherwise. We will provide a refund of all payment received (not including delivery upgrades), usually within 2 working days of receiving your return (it may take a little longer during busy periods or for more complex returns). This will be made to the original payment method. For most payment methods it will take 3-5 working days for this to show on your statement.

Please ensure items from your order are suitable before wearing as we are unable to accept items which have been worn under our returns policy.

Returns are free on all UK orders. For orders under £500, you may generate a free tracked and insured returns label on the Royal Mail website (opens in a new window). You can print this label and send it back at any local Post Office at no cost to yourself. It is also possible to have the label printed at Post Office using the QR code from the confirmation email. Please retain the proof of postage receipt. Unfortunately we are unable to refund return postage for orders under £500 sent back by other methods, so we recommend printing the free postage label provided. For orders from £500 to £2,500, the Royal Mail label does not cover the value of the item, so please send it back by Royal Mail Special Delivery, insured for its full value, and we will reimburse the postage separately (please keep your proof of postage — full details are on your receipt), or contact us and we can arrange a collection. For orders over £2,500, please contact us and we will arrange the return for you. For international returns, you will need to bear the cost of returns postage. Please ensure the watch is returned to us in an unworn, new condition with all the original packaging (manufacturer's manual and guarantee if applicable). Please ensure items from your order are suitable before wearing as we are unable to accept items which have been worn under our returns policy. We reserve the right to make deductions for unnecessary damage caused to the product by yourself.

For UK orders we are also able to offer an exchange to a different product if required, please specify this when returning your product. For international orders, please return the item for a refund and place a new order for the product you would like.

If a fault develops with a watch that is outside of the 30 day returns period or is no longer in a new condition the watch can be returned to the manufacturer under the terms of the guarantee (we are an official UK dealer for all brands on our website) so that they can rectify any issues. For more information please see our returns policy page.

Reviews (19)
Authorised Retailer
First Class Watches are Seiko watch retail partners so you can be assured your sparkling new watch will arrive with a stamped manufacturer's warranty, packaging and instructions.
This item is supplied with:
  • Official Seiko guarantee
    fully stamped (where appropriate)
  • Instruction manual
    Please note some brands use online manuals
  • Official Packaging
    Official Seiko packaging
19
Customer Reviews
5 / 5
Average Rating
5 star (Best) (19)
4 star (0)
3 star (0)
2 star (0)
1 star (Worst) (0)
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Seiko 5 ‘Green Zone’ Midfield Sports Style SRPJ85K1 (SRPJ85K1)

This is a great looking watch
Everything about it is just right
The service from First Class Watches was also excellent.
My second watch from them and no doubt it won’t be my last.

reviewed 02/05/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
4 Ease of use
5 Style
5
Overall Rating
Exceptional service and great watch too.

reviewed 13/04/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Excellent quality. Arrived in good time with no issues.

reviewed 10/01/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Fantastic watch with next day delivery. Watch is exactly what I wanted and cheaper than any site. Looks even better than the pictures.

reviewed 05/01/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Excellent watch, got.it as a replacement of the previous seiko 5 automatic model. It has some really nice improvements, numbers, the automatic mechanism and the 2 different colors lume. The strap is quite light, a bit long, in my case i had to flip the end and pass it again but still really comfortable to wear.
I have read reviews stating the glass is not sapphire and might be prompt to scratch but so far hasn't happened to me. Very comfortable on the wrist, even when used constantly.

Only 'cons' is that in US and Japan there seems to be a green version, not available in Europe.

reviewed 08/12/2025

VERIFIED FIRST CLASS CUSTOMER
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