Seiko Cal. 6638 - 824

The Seiko 6638-824 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-73aa3cbc2a68]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1973

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