Seiko Cal. 6649 - 928

Seiko 6649-928

This Spring Drive model from 1973 features a 37mm Stainless Steel case. Powered by the 6649 caliber with 20j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-2b0ce6bc5cd7]

Also known as: Monster, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Champagne
Jewels
20j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1973

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