Seiko Cal. 6639 - 136

This Automatic model from 1972 features a 45mm Titanium case. Powered by the 6639 caliber with 21j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-e505b1ede126]

Also known as: Panda

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1972

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