Seiko Cal. 4490 - 940

The Seiko 4490-940 represents an important milestone in Seiko's 1988 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d2761f8705b0]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1988

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