On the wrist, the white dial SSK021 instantly reminds you of the Explorer II “Polar.” The crisp white surface makes the black hour markers pop, while the bold orange GMT hand slices across the dial like a compass arrow. The fixed 24-hour bezel keeps the aesthetic functional and field-ready, while the Arabic numerals inside add that practical military-watch edge.
This particular version is a Japan Domestic Market model, which means you won’t see it in every Seiko boutique. That said, it’s far from elusive. You can easily find brand-new examples on Amazon, eBay, and Chrono24, often shipped directly from Japan.
Under the hood is Seiko’s 4R34 automatic movement. It hacks, hand-winds, and offers a 41-hour power reserve. This is a “caller GMT,” meaning you set the GMT hand independently, ideal for tracking a second time zone. It is less of a pilot’s watch and more of a rugged companion for land-based adventures.
Sized at 39.4 mm and 13.6 mm thick, it hits a sweet spot for daily wear. The white dial brings a refreshing, clean look that works as well in an urban café as it does on a mountain ridge. It’s a watch you can wear all week without feeling like you’re trying too hard.
Why it elevates your watch game:
Polar dial punch: White dial with black markers delivers high contrast and adventure cred.
Iconic GMT flair: Orange GMT hand is pure Explorer II energy at a fraction of the price.
Rugged movement: The 4R34 is a proven Seiko workhorse.
Perfectly wearable: Compact size and balanced proportions suit almost any wrist.
Tool watch ready: 100 m water resistance, Hardlex crystal, and solid steel build.daily wear. Big enough to read at a glance, slim enough to slide under a cuff.
Specs:
Case size & material: 39.4 mm × 13.6 mm stainless steel
Dial: White, luminous hands and markers, 24-hour scale, date at 3 o’clock
Movement & power reserve: Seiko 4R34 automatic, hacking, hand-winding, 41-hour reserve
Crystal: Curved Hardlex
Bracelet/strap: Stainless steel bracelet
Approx. price: ~US $435
Style It With These picks from Amazon:
Shop this article:
Seiko 5 Sports Field GMT - An often overlooked model from Seiko - $448.92
Stone-grey canvas field jacket — A nod to the utilitarian Explorer look, with a lighter tone to echo the dial. $149.99
Black merino wool crewneck — Slim and insulating, adds contrast under the jacket. $47.69
Olive green cargo trousers — Functional and travel-ready, with enough structure for city wear. $42.99
Weathered brown leather boots — Grip for the trail, character for the street. $160.00
Final thoughts:
The white dial SSK021 isn’t pretending to be an Explorer II. It’s simply proof that you can get that same adventurous, world-travelling spirit without needing to remortgage your house. It’s a tool watch that knows exactly what it is — and that’s the charm.
This post may contain affiliate links. If you buy something through these links, The Daily Dial may earn a small commission — at no extra cost to you.