Seiko Cal. 4564 - 378

Seiko 4564-378

This Automatic model from 1966 features a 45mm Titanium case. Powered by the 4564 caliber with 23j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-d81f2dc77d02]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1966

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