Seiko Cal. 7140 - 178

The Seiko 7140-178 represents an important milestone in Seiko's 1973 lineup. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-909380055c74]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1973

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