Seiko Cal. 4539 - 499

The Seiko 4539-499 represents an important milestone in Seiko's 1978 lineup. Powered by the 4539 caliber with 28j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-8ca3ad34d8ea]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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