Seiko Cal. 4420 - 180

The Seiko 4420-180 represents an important milestone in Seiko's 1995 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-277d1ac73457]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1995

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