Seiko Cal. 6643 - 309

This Solar model from 1966 features a 38mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-e538ebe9eddd]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

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