Seiko Cal. 0748 - 178

Seiko 0748-178

The 0748-178 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0748 caliber with 31j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-ced7fc78903e]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
8.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1980

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seikata-wm-ced7fc78903e