Seiko Cal. 6356 - 959

This Spring Drive model from 1989 features a 46mm PVD Black case. Powered by the 6356 caliber with 23j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-6461d7735008]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1989

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