Seiko Cal. 4556 - 940

Released in 1983, the Cal. 4556 with design code 940 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-8571a7d55161]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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