Seiko Cal. 5639 - 123

The 5639-123 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-8dd6808fbf8c]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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