Seiko Cal. 5638 - 399

The 5638-399 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5638 caliber with 20j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-4750dc402f4d]

Also known as: Pogue

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1966

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