Seiko Cal. 7161 - 143

This Quartz model from 1965 features a 42mm Two-Tone case. Powered by the 7161 caliber with 23j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-d27f355c7c59]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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