Seiko Cal. 4540 - 604

The Seiko 4540-604 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-08fd0438ba8a]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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