Seiko Cal. 5620 - 639

The 5620-639 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-19ef95ee9439]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1973

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