Seiko Cal. 6698 - 657

Seiko 6698-657

This Spring Drive model from 1965 features a 34mm Hardlex-Coated Steel case. Powered by the 6698 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-e3ebda3ad4f8]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
15.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Silver
Jewels
33j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1965

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