Seiko Cal. 3840 - 342

Released in 1968, the Cal. 3840 with design code 342 was part of Seiko's domestic market collection. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-5cdf38eafab4]

Also known as: UFO, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1968

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