Seiko Cal. 3887 - 520

Seiko 3887-520

This Hand-Winding model from 1987 features a 37mm Hardlex-Coated Steel case. Powered by the 3887 caliber with 31j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-075f6b444e3d]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
50m
Dial Color
Black
Jewels
31j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1987

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seikata-wm-075f6b444e3d