Seiko Cal. 4540 - 445

This Spring Drive model from 1990 features a 40mm Two-Tone case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0c0fd84c2137]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1990

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