Seiko Cal. 3840 - 597

Released in 1981, the Cal. 3840 with design code 597 was part of Seiko's domestic market collection. With its 22mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-91b35ef07cb1]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1981

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