Seiko Cal. 5638 - 960

Seiko 5638-960

The Seiko 5638-960 represents an important milestone in Seiko's 1972 lineup. Powered by the 5638 caliber with 35j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-4fc9c86485aa]

Also known as: Samurai, Sumo

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
34mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
White
Jewels
35j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1972

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