Seiko Cal. 4431 - 746

Released in 1985, the Cal. 4431 with design code 746 was part of Seiko's domestic market collection. With its 19mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-a6b27da01afc]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1985

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