Seiko Cal. 5637 - 810

Seiko 5637-810

The Seiko 5637-810 represents an important milestone in Seiko's 1966 lineup. Powered by the 5637 caliber with 27j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e84b57727c7f]

Also known as: Turtle, UFO

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
14.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
130m
Dial Color
Silver
Jewels
27j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1966

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