Seiko Cal. 4431 - 229

The Seiko 4431-229 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-73a4812bf4a5]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

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