Seiko Cal. 5638 - 994

The 5638-994 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5638 caliber with 29j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-079f7d1601c1]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1970

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