Seiko Cal. 4420 - 691

This Spring Drive model from 1988 features a 46mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-b3a239cec895]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1988

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