Seiko Cal. 6637 - 313

The 6637-313 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-0477db457a51]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1992

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