Seiko Cal. 3885 - 640

Seiko 3885-640

This Automatic model from 1990 features a 41mm Stainless Steel case. Powered by the 3885 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-f773b5826c54]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Cream
Jewels
23j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1990

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