Seiko Cal. 4437 - 923

The 4437-923 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-0dc85627b25c]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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