Seiko Cal. 6635 - 666

Seiko 6635-666

The Seiko 6635-666 represents an important milestone in Seiko's 1994 lineup. Powered by the 6635 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-756e6b6c0c6a]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
34mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1994

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