Seiko Cal. 4539 - 921

The Seiko 4539-921 represents an important milestone in Seiko's 1996 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-fd7f16c55ecb]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1996

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