Seiko Cal. 4540 - 780

The Seiko 4540-780 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-a86c2a29e08f]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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