Seiko Cal. 6646 - 714

The 6646-714 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-ba0bc08e84ce]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1995

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