Seiko Cal. 6641 - 635

Seiko 6641-635

The Seiko 6641-635 represents an important milestone in Seiko's 1978 lineup. Powered by the 6641 caliber with 35j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-5c818412b460]

Also known as: Pogue, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
160m
Dial Color
Navy
Jewels
35j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1978

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seikata-wm-5c818412b460