Seiko Cal. 3840 - 711

The Seiko 3840-711 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0b6d8d925701]

Also known as: Rally, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1970

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