Seiko Cal. 7140 - 393

The Seiko 7140-393 represents an important milestone in Seiko's 1984 lineup. Powered by the 7140 caliber with 30j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-3caecb036e98]

Also known as: Crown, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1984

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