Seiko Cal. 6140 - 475

Released in 1974, the Cal. 6140 with design code 475 was part of Seiko's domestic market collection. With its 21mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-1ed49ee616e1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1974

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