Seiko Cal. 6635 - 787

Seiko 6635-787

The Seiko 6635-787 represents an important milestone in Seiko's 1979 lineup. Powered by the 6635 caliber with 25j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-80c2d9556f9d]

Also known as: Baby Tuna, Emperor

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
40mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Champagne
Jewels
25j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1979

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