Seiko Cal. 3891 - 887

Seiko 3891-887

This Hand-Winding model from 1978 features a 37mm Gold-Plated case. Powered by the 3891 caliber with 32j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-77f8c65752a2]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
13.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Green
Jewels
32j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1978

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seikata-wm-77f8c65752a2