Seiko Cal. 4478 - 731

The Seiko 4478-731 represents an important milestone in Seiko's 1996 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-9288ffeb913a]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1996

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