Seiko Cal. 5638 - 306

The Seiko 5638-306 represents an important milestone in Seiko's 1990 lineup. Powered by the 5638 caliber with 31j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-3779eb05b73c]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1990

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