Elliot Brown HOLTON AUTOMATIC: 101-A10vsFortis Marinemaster M-40
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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.

HOLTON AUTOMATIC: 101-A10

Marinemaster M-40
Diameter
43mm
40mm
Thickness
14mm
13mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
40h
highest
38h
MSRP
$792
lowest
$3,520
Movement
Seiko NH35
Sellita SW220-1
Case
5 specsCrystal & Dial
1 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Elliot Brown HOLTON AUTOMATIC: 101-A10 is noted as an issued watch for UKSF, bearing a crow's foot and NSN marking. One owner reports the dial lume is lackluster, potentially due to the vintage aesthetic influencing the choice of Super-LumiNova. Overall, owners rate the Elliot Brown HOLTON AUTOMATIC: 101-A10 for its military provenance and issued status.
Owners widely praise the Fortis Marinemaster M-40 for its gorgeous appearance and strong wrist presence, noting its impressive lume. The watch comes with a bracelet and three rubber straps, including a deployant buckle. On balance, owners rate the Fortis Marinemaster M-40 highly for its aesthetic appeal and comprehensive strap package.
The watch's Swiss Made construction and robust design are consistently praised. Reviewers noted the bracelet as a potential point of contention.
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