Seiko Cal. 5243 - 331

The Seiko 5243-331 represents an important milestone in Seiko's 1974 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-bcbc08285230]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1974

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