Seiko Cal. 4540 - 303

The Seiko 4540-303 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-933f452f1fd1]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1983

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