Seiko Cal. 6357 - 998

Seiko 6357-998

This Spring Drive model from 1979 features a 36mm Hardlex-Coated Steel case. Powered by the 6357 caliber with 30j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-158a2f3a41e1]

Also known as: UFO, Goldfeather

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.1mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Black
Jewels
30j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1979

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