Seiko Cal. 6639 - 181

This Solar model from 1971 features a 42mm Titanium case. It features a Silver dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-78cf6ff97796]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1971

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