Seiko Cal. 7143 - 390

The 7143-390 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-9c85ae7d832e]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1969

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