Seiko Cal. 4540 - 180

The Seiko 4540-180 represents an important milestone in Seiko's 1993 lineup. It features a Navy dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-bec450b0ebb2]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1993

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