Seiko Cal. 6638 - 786

Seiko 6638-786

The Seiko 6638-786 represents an important milestone in Seiko's 1969 lineup. Powered by the 6638 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-42e87bbc8870]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
14.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
160m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1969

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seikata-wm-42e87bbc8870