Seiko Cal. 4456 - 147

The 4456-147 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-75af70147f81]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1986

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