Seiko Cal. 6663 - 863

Seiko 6663-863

This Automatic model from 1978 features a 46mm Stainless Steel case. Powered by the 6663 caliber with 29j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-937910406d1e]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
10.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1978

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seikata-wm-937910406d1e