Seiko Cal. 6641 - 436

Seiko 6641-436

The 6641-436 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6641 caliber with 33j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-87a93b33bb06]

Also known as: Monster, Panda

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
100m
Dial Color
White
Jewels
33j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1972

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