Seiko Cal. 4540 - 821

The Seiko 4540-821 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-88ca9f6c2fea]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1987

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