Seiko Cal. 7178 - 703

Seiko 7178-703

The 7178-703 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7178 caliber with 36j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-7fb8b18981af]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
45mm
Case Thickness
14.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Cream
Jewels
36j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1974

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