Seiko Cal. 6641 - 828

Seiko 6641-828

This Automatic model from 1968 features a 34mm Two-Tone case. Powered by the 6641 caliber with 21j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-06cb33d00af6]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
34mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
Burgundy
Jewels
21j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1968

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