Seiko Cal. 3856 - 280

Seiko 3856-280

The 3856-280 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3856 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f585238ff0c1]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1992

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