Seiko Cal. 4490 - 156

The 4490-156 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4490 caliber with 29j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-2817089c2284]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1988

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