Seiko Cal. 4540 - 677

The Seiko 4540-677 represents an important milestone in Seiko's 1992 lineup. With its 20mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-6cc051acc66c]

Also known as: Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1992

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