Seiko Cal. 4554 - 206

The Seiko 4554-206 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-4b8861c636bf]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1978

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