Seiko Cal. 4564 - 544

The Seiko 4564-544 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-152bb198f6e1]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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