Seiko Cal. 6637 - 763

The 6637-763 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-6958b2cc668f]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1993

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