Seiko Cal. 3863 - 280

Seiko 3863-280

This Hand-Winding model from 1981 features a 46mm Stainless Steel case. Powered by the 3863 caliber with 17j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-073945d3c816]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
12.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Champagne
Jewels
17j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1981

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seikata-wm-073945d3c816