Seiko Cal. 5654 - 638

The Seiko 5654-638 represents an important milestone in Seiko's 1989 lineup. Powered by the 5654 caliber with 29j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-8c494b063879]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1989

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