Seiko Cal. 4540 - 162

The Seiko 4540-162 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-38a845d9fadf]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1977

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