Seiko Cal. 4431 - 648

The Seiko 4431-648 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-32ced599bd83]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1989

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