Seiko Prospex 145th Anniversary Limited Edition
HBB001
- Case
- 41.7mm
- MSRP
- $595
- Movement
- Automatic with manual winding
- Reserve
- 41h
VS
Building 1v1 comparison
Building 1v1 comparison
1v1 Watch Comparison
A focused side-by-side page for specs, fit, movement details, review notes, and enthusiast context.
HBB001
M7943A1A0NU-0002
Pair Review
Built from the saved specs and wearability notes for these two watches, then weighed against enthusiast priorities like fit, movement quality, practicality, finishing, value, and collector appeal.
Where it wins
Enthusiasts prioritizing value, compact wearability, and classic dive-watch utility
Where it wins
Buyers prioritizing movement certification, magnetic resistance, and a longer power reserve
The Seiko uses Seiko’s automatic-with-manual-winding 4R35, with 23 jewels and a 41-hour power reserve; it is a straightforward, proven entry-level mechanical caliber, but no accuracy claim is listed. The Tudor uses the MT5601-U, an automatic movement with a 70-hour power reserve and the big technical advantage of COSC and METAS certification, plus 15,000 gauss magnetic resistance. On paper, that makes the Tudor more sophisticated, more robust in modern daily use, and better specified for long-term ownership confidence. The Seiko is simpler and likely easier to live with from a cost perspective, but the Tudor is the clearly stronger movement package. Winner: Tudor Black Bay 68
The Seiko is the smaller and easier-wearing watch at 41.7mm wide, 12.3mm thick, and 49.5mm lug-to-lug, with a listed weight of 170g on a steel bracelet. Its wearability summary describes it as a compact Prospex diver, which aligns with the dimensions and suggests a more versatile fit for a broader range of wrists. The Tudor is larger at 43mm by 13.6mm, and its wearability summary notes that it has strong wrist presence and is best suited to larger wrists, even though the thickness remains reasonably controlled for the size. Because the Tudor lug-to-lug and weight are not yet listed, the comparison is only partial, but the available data still favors the Seiko for comfort and wide compatibility. Winner: Seiko Prospex 145th Anniversary Limited Edition
Both watches offer 200m water resistance and screw-down crowns, so both are legitimate everyday dive watches. The Seiko adds a date display, LumiBrite on hands, indexes, and bezel, and a unidirectional rotating bezel, which gives it classic tool-watch utility and strong practical legibility; it also comes on a solid steel bracelet with an extender clasp. The Tudor has a cleaner no-date dial, a domed sapphire crystal, METAS-certified movement, anti-magnetic resistance, and a T-fit clasp on a refined 3-link bracelet, making it feel more modern and more premium in hand. Its silver dial is described as crisp and highly legible, but lume specifics and bezel details are not yet listed. For pure everyday practicality, the Seiko is the more explicitly equipped diver, while the Tudor is the more polished and mechanically reassuring daily wear piece. Winner: Tudor Black Bay 68
The Seiko’s $595 MSRP puts it in a very different ownership category from the Tudor’s $5,075 MSRP. On value alone, the Seiko delivers stainless steel, 200m water resistance, a screw-down crown, lume on the bezel, and a limited-edition caseback marking at a relatively accessible price, which gives it strong enthusiast appeal for the money. The Tudor brings more brand cachet in the premium sports-watch space, a more advanced movement, METAS certification, anti-magnetic resistance, and a more refined bracelet and clasp system, but it asks for a much larger financial commitment. The Seiko is the better value proposition, while the Tudor is the more luxurious and technically complete ownership experience. Winner: Seiko Prospex 145th Anniversary Limited Edition
Compared
HBB001
M7943A1A0NU-0002