Seiko Cal. 3881 - 902

Seiko 3881-902

This Automatic model from 1968 features a 39mm Gold-Plated case. Powered by the 3881 caliber with 34j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-ecb71fe3dbe5]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
15.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
90m
Dial Color
Black
Jewels
34j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1968

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