Seiko Cal. 4556 - 104

The Seiko 4556-104 represents an important milestone in Seiko's 1982 lineup. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-a274c60d27a8]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1982

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