Seiko Cal. 6639 - 508

This Spring Drive model from 1965 features a 36mm Gold-Plated case. It features a Burgundy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-84302687a596]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1965

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