Seiko Cal. 6121 - 433

This Hand-Winding model from 1979 features a 35mm Hardlex-Coated Steel case. It features a Green dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-a620e5c4d323]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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