Seiko Cal. 4491 - 776

Seiko 4491-776

This Hand-Winding model from 1967 features a 40mm Titanium case. Powered by the 4491 caliber with 21j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-7dfcecf38650]

Also known as: Sumo, Arnie

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
12.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
White
Jewels
21j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1967

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