Seiko Cal. 6637 - 717

The 6637-717 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-13704618da54]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1988

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