Seiko Cal. 4540 - 821

The Seiko 4540-821 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-03dc5ad90cd5]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1975

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