Seiko Cal. 6623 - 923

The 6623-923 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e9d3eea0dbd6]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1990

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