Seiko Cal. 4521 - 842

The Seiko 4521-842 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-67c84347f76c]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1971

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