Seiko Cal. 7178 - 643

Seiko 7178-643

The Seiko 7178-643 represents an important milestone in Seiko's 1976 lineup. Powered by the 7178 caliber with 18j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-53ece80421af]

Also known as: Shogun, Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Burgundy
Jewels
18j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1976

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