Seiko Cal. 5658 - 106

This Spring Drive model from 1989 features a 37mm PVD Black case. Powered by the 5658 caliber with 36j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-b1825f1adff8]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1989

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