Seiko Cal. 6121 - 520

This Spring Drive model from 1974 features a 37mm PVD Black case. Powered by the 6121 caliber with 25j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-cccf630f184f]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1974

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