Seiko Cal. 7178 - 331

The 7178-331 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7178 caliber with 23j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-72717662298f]

Also known as: World Timer, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1999

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