Seiko Cal. 4539 - 698

The 4539-698 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4539 caliber with 23j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-100260af42d1]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1985

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