Seiko Cal. 7140 - 386

The Seiko 7140-386 represents an important milestone in Seiko's 1973 lineup. Powered by the 7140 caliber with 22j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-7f405198b98c]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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