Nezumi Studios AviatorvsUlysse Nardin San Marco GMT ± Big Date
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Aviator

San Marco GMT ± Big Date
Diameter
40mm
40mm
Lug-to-Lug
47mm
n/a
Thickness
13.3mm
11.8mm
lowest
Water Resistance
200m
highest
100m
Power Reserve
42h
42h
MSRP
$685
n/a
Movement
Miyota 9075
UN-22
Case
5 specsCrystal & Dial
3 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Nezumi Studios Aviator is widely praised for its attractive vintage-inspired design and excellent value, with reviewers highlighting its compact 40mm case and robust 200m water resistance. Owners and reviewers alike appreciate the watch's build quality and the distinctiveness of its dial layout and GMT hand. Some sources note minor fitment issues with the bracelet end links. The watch utilizes the Miyota 9075 automatic GMT movement, with one reviewer stating its accuracy is rated at -10/+30 seconds per day. Overall, owners and reviewers rate the Nezumi Studios Aviator highly for its vintage aesthetic and tool watch capabilities at its price point.
Owners widely praise the Ulysse Nardin San Marco GMT ± Big Date for its exceptional reliability and build quality, with one owner reporting twelve years of service comparable to Rolex and JLC. Reviewers and owners consistently highlight its superb accuracy, with figures as precise as ±1 second per day, and its practical GMT functionality for travelers. The watch's design is described as having just enough eccentricity to be interesting, featuring good legibility and great finishing, though some find its aesthetic dated. The 40mm case is noted to wear well, and the movement is praised for its in-house components and silicon parts. Overall, owners and reviewers rate the Ulysse Nardin San Marco GMT ± Big Date highly for its enduring reliability and precise timekeeping.
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