Seiko Cal. 7140 - 784

The Seiko 7140-784 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-8e47fd6effe5]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1987

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