Seiko Cal. 3817 - 156

Seiko 3817-156

This Hand-Winding model from 1971 features a 34mm Gold-Plated case. Powered by the 3817 caliber with 31j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-72510cdf3b06]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
50m
Dial Color
Champagne
Jewels
31j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1971

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seikata-wm-72510cdf3b06