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The Seiko 5 Sports SSK003 is a mechanical GMT sports watch with a 42.5 mm stainless steel case and a rotating 24-hour bezel. Its 4R34 automatic movement runs about 41 hours on a full wind and drives a fourth 24-hour hand for tracking a second time zone. It suits people who want a real GMT with an in-house automatic movement without paying luxury-brand money. Against Swiss GMTs it gives up finishing and brand prestige, but it matches them on function and beats most sub-$500 rivals on specs.
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Lowest price we've seen: $396.00 on Nov 13 at Teddy Baldassarre. Tracked across 13 stores since Nov 13.
Owners rate the SSK003 as one of the best value mechanical GMTs available, praising the true GMT layout and the Seiko 5 build. Common complaints are the size and thickness on smaller wrists and the Hardlex crystal.
The Seiko 5 Sports SSK003K1 is an automatic GMT watch with a 24-hour hand. It runs on the Seiko 4R34 movement, which has 24 jewels, a stop-second function and manual winding. The power reserve is approximately 41 hours.
The case is stainless steel with a rotating bezel and a Hardlex crystal. The hands and indexes have LumiBrite. A see-through screw-down case back shows the movement. The band closes with a three-fold clasp with push-button release and a secure lock.






