Seiko Cal. 6641 - 737

Seiko 6641-737

This Solar model from 1970 features a 41mm Stainless Steel case. Powered by the 6641 caliber with 24j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-7254af3e2fa7]

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Burgundy
Jewels
24j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1970

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