Seiko Cal. 4556 - 729

Seiko 4556-729

This Solar model from 1966 features a 36mm Two-Tone case. Powered by the 4556 caliber with 20j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-d68f4128338f]

Also known as: Samurai, Bullhead

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
36mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
90m
Dial Color
Champagne
Jewels
20j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1966

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