Seiko Cal. 3881 - 399

Seiko 3881-399

This Automatic model from 1992 features a 37mm Hardlex-Coated Steel case. Powered by the 3881 caliber with 18j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-d9e6dd2c941f]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
15.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1992

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