Seiko Cal. 4431 - 697

The 4431-697 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-857398c97d00]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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