Seiko Cal. 6623 - 397

Released in 1991, the Cal. 6623 with design code 397 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-68d93bcd4fe6]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1991

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