Seiko Cal. 6687 - 241

This Spring Drive model from 1989 features a 35mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-cdc57e86c3a0]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1989

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