Seiko Cal. 4488 - 634

Released in 1991, the Cal. 4488 with design code 634 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-175742be3df9]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

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