Seiko Cal. 6178 - 997

Seiko 6178-997

The 6178-997 is a sought-after Solar piece from Seiko's golden era. Powered by the 6178 caliber with 25j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-90d0312bda5c]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
White
Jewels
25j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1966

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