Tudor Black Bay 41
M79680-0001
- Case
- 41mm
- MSRP
- $4,825
- Movement
- Automatic
- Reserve
- 70h
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.
M79680-0001
SSK009
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
Buyers who want the stronger movement package and a more premium overall execution.
Where it wins
Enthusiasts who want a stylish GMT with vintage-inspired character.
The Seiko uses the automatic 4R34, a 24-jewel movement with a 41-hour power reserve and GMT function; the Tudor uses the automatic MT5601, a COSC-certified movement with a 70-hour power reserve. On the listed data, Tudor has the stronger technical spec sheet: longer reserve, COSC certification, and an in-house caliber that signals a more serious movement architecture. The Seiko’s 4R34 is still appealing because it brings true GMT functionality at a far lower price, and its exhibition caseback adds enthusiast charm, but the available notes describe it as more entry-level and less refined in accuracy consistency and GMT architecture. Serviceability and long-term reliability are not fully detailed in the data, though the Tudor’s higher-spec movement and COSC status point to a more robust premium proposition. Winner: Tudor Black Bay 41
The Seiko is 40.8mm wide, 13mm thick, has a 47mm lug-to-lug, 20mm lugs, and weighs 136 grams. The Tudor is 41mm wide, 12.2mm thick, has 22mm lugs, and no lug-to-lug or weight listed. On paper, the Seiko is the more fully specified watch for fit analysis, and its 47mm lug-to-lug plus moderate case diameter suggest a compact, wearable profile that should suit a broad range of wrists. The wearability note also calls it very wearable, with a balanced 40.8mm case and vintage-inspired presence that stays approachable. The Tudor’s listed thickness is slightly slimmer, and the T-Fit clasp plus well-articulated bracelet are highlighted as major comfort strengths; the wearability note says it feels substantial, with a more noticeable 41mm presence and a larger wear profile than the Black Bay 39. Without a lug-to-lug figure, the Tudor can’t be as precisely evaluated, but the overall notes suggest a more premium-feeling yet slightly larger, more substantial fit. Winner: Tie
The Seiko brings a blue dial with warm blue-gray character, LumiBrite, a box-shaped Hardlex crystal, 50m water resistance, a date display, and GMT functionality. The Tudor offers an anthracite dial, flat sapphire crystal, 100m water resistance, no date, and no GMT. For pure everyday practicality, the Tudor has the edge in crystal durability, water resistance, bracelet/clasp sophistication, and overall versatility as a refined one-watch option. The Seiko counters with a more expressive dial, a useful GMT hand for travel, and a vintage-styled presentation that makes it more visually distinctive day to day; its 50m rating is adequate for regular wear but less confidence-inspiring than Tudor’s 100m. The Seiko’s bracelet is described as attractive but less refined, while the Tudor’s five-link bracelet and T-Fit clasp are standout strengths for comfort and micro-fit convenience. Winner: Tudor Black Bay 41
At $500 MSRP, the Seiko offers an unusually rich specification set for the money: automatic GMT, exhibition caseback, stainless steel bracelet, and a cohesive retro design with strong enthusiast appeal. The Tudor, at $4,825 MSRP, sits in a completely different tier and brings brand prestige, COSC-certified in-house movement, sapphire crystal, stronger water resistance, and a more developed bracelet/clasp system. From a pure value-for-features standpoint, the Seiko is the clear bargain and has strong collector charm as a distinctive, affordable mechanical GMT. From a premium ownership and heritage signal standpoint, the Tudor carries the more substantial brand context and a more mature execution, which may matter to buyers who want a higher-end long-term piece. Maintenance expectations and durability are not fully specified, so this comparison is based only on listed materials and execution. Winner: Seiko Presage Style 60s GMT SSK009