Seiko Cal. 3865 - 769

Seiko 3865-769

The 3865-769 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3865 caliber with 36j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-6beaf6b4ba34]

Also known as: Sumo, Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
43mm
Case Thickness
14.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
130m
Dial Color
White
Jewels
36j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1982

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