Seiko Cal. 4555 - 691

The Seiko 4555-691 represents an important milestone in Seiko's 1982 lineup. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-95585bc8c4d7]

Also known as: UFO, World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1982

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