Seiko Cal. 4540 - 161

The Seiko 4540-161 represents an important milestone in Seiko's 1995 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d15b68cc7a18]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1995

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