Seiko Cal. 6638 - 797

This Hand-Winding model from 1965 features a 34mm Two-Tone case. Powered by the 6638 caliber with 35j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-81e9d733b718]

Also known as: Sea Horse, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1965

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