Seiko Cal. 7140 - 654

This Hand-Winding model from 1981 features a 34mm Two-Tone case. Powered by the 7140 caliber with 19j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-357c0a4b40a8]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1981

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