Seiko Cal. 4528 - 911

The Seiko 4528-911 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8f49d76f9b56]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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