Seiko Cal. 3840 - 378

The Seiko 3840-378 represents an important milestone in Seiko's 1979 lineup. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-6151257a9eba]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1979

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