Seiko Cal. 6365 - 788

Seiko 6365-788

This Spring Drive model from 1999 features a 40mm Stainless Steel case. Powered by the 6365 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-05d216772005]

Also known as: Monster, Helmet

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1999

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seikata-wm-05d216772005