Seiko Cal. 5638 - 360

The Seiko 5638-360 represents an important milestone in Seiko's 1990 lineup. Powered by the 5638 caliber with 24j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-c27517ba4ad3]

Also known as: Samurai, Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1990

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