Seiko Cal. 5638 - 462

The Seiko 5638-462 represents an important milestone in Seiko's 1979 lineup. Powered by the 5638 caliber with 23j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-248a983a92ad]

Also known as: Rally, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1979

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