Seiko Cal. 5640 - 974

This Hand-Winding model from 1985 features a 36mm Gold-Plated case. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-a6814ac1218e]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1985

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