Seiko Cal. 6637 - 131

The 6637-131 is a sought-after Solar piece from Seiko's golden era. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-34804cfc20be]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

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