Seiko Cal. 5638 - 630

The Seiko 5638-630 represents an important milestone in Seiko's 1989 lineup. Powered by the 5638 caliber with 30j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-c496d8a3ae92]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1989

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