Seiko Cal. 4489 - 311

This Spring Drive model from 1976 features a 40mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-cd149f53da30]

Also known as: Monster, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1976

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