Seiko Cal. 4431 - 973

Released in 1992, the Cal. 4431 with design code 973 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-bd7ba5b82b7e]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1992

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