Khaki Navy Frogman Auto 41mm

Ref. H77455330

Case diameter: 41 mm; Manufacturer spec
Lug-to-lug: 44 mm; Measured in a published review
Thickness: 13.1 mm; Manufacturer spec
Lug width: 20 mm; Manufacturer spec

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 44 mm

How the Khaki Navy Frogman Auto 41mm wears

Its lugs add only 3 mm to the 41 mm case, against 7.1 mm typical across the almanac, so it wears smaller than its diameter suggests.

On our fit model it sits best on wrists from 6.25" to 7.25" (15.9–18.4 cm); below 6.25" the lugs start to reach the edge of the wrist.

At 13.1 mm thick it is thicker than 58% of the 79 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 20 mm lug width is one of the most common strap sizes; 104 other watches here share it, so aftermarket straps are easy to find.

Will the Khaki Navy Frogman Auto 41mm fit your wrist?

With a 44 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

Wrist	Flat width (est.)	Fit
6"	47.2 mm	Snug, lugs near the edge
6.5"	51.2 mm	Ideal fit
7"	55.1 mm	Ideal fit
7.5"	59.1 mm	Wears small
8"	63 mm	Wears small

Specifications

Reference: H77455330
Collection: Khaki Navy
Status: Discontinued
Case material: stainless steel
Crystal: sapphire
Water resistance: 300 m
Bezel: unidirectional rotating dive bezel
Dial: black
Strap / bracelet: rubber strap, pin buckle
Style: Dive

Movement

Caliber: ETA (Hamilton) H-10
Type: automatic
Power reserve: 80 hours
Frequency: 21,600 vph (3 Hz)
Jewels: 25

7 other watches use the ETA H-10

Takes 20 mm straps. See other 20 mm watches and straps.

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 20 mm lug width

All 20 mm watches

These take the same straps as the Khaki Navy Frogman Auto 41mm.