Seiko Cal. 4540 - 267

The Seiko 4540-267 represents an important milestone in Seiko's 1988 lineup. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-15f7ef322246]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1988

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