Seiko Cal. 7178 - 823

Seiko 7178-823

The Seiko 7178-823 represents an important milestone in Seiko's 1979 lineup. Powered by the 7178 caliber with 28j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-cc946d7857fa]

Also known as: Tuna, Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
100m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1979

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