Seiko Cal. 4581 - 737

The 4581-737 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-cceaa1472cf0]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1970

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