Seiko Cal. 6178 - 497

This Spring Drive model from 1975 features a 44mm PVD Black case. Powered by the 6178 caliber with 25j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-c9f31670a4e5]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1975

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