Seiko Cal. 0765 - 825

Seiko 0765-825

The 0765-825 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0765 caliber with 18j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-4253a9a7f9f5]

Also known as: Monster, Sumo

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
18j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1979

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