Seiko Cal. 3861 - 856

Seiko 3861-856

This Hand-Winding model from 1966 features a 37mm Gold-Plated case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-bd9335f24d9e]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
10.7mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1966

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