Erebus Watches Ascent 40 GMTvsUlysse 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.

Ascent 40 GMT

San Marco GMT ± Big Date
Diameter
40mm
40mm
Lug-to-Lug
46mm
n/a
Thickness
12.4mm
11.8mm
lowest
Water Resistance
100m
100m
Power Reserve
n/a
42h
MSRP
$429
n/a
Movement
Miyota 9075
UN-22
Case
4 specsCrystal & Dial
3 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Erebus Watches Ascent 40 GMT for its stunning dial, excellent lume, and comfortable wearability, with the bracelet's micro-adjustable clasp and well-finished screws receiving specific commendation. The watch is considered a great value, with many noting its attractive price point for the features offered, including a true GMT complication. Some owners find the dial text too prominent and contrasty, and import duties are a significant concern for some buyers, pushing the cost higher. On balance, owners rate the Erebus Watches Ascent 40 GMT highly for its beautiful dial and strong value proposition.
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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