Seiko Cal. 5610 - 581

The 5610-581 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5610 caliber with 23j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-df9098177f42]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1980

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