Seiko Cal. 4423 - 861

The Seiko 4423-861 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-828120a79572]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1966

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