Seiko Cal. 6638 - 389

The 6638-389 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-b316fc9408cb]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1976

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