Seiko Cal. 4431 - 300

This Hand-Winding model from 1993 features a 36mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-ea6ce0a089df]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1993

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