Seiko Cal. 7110 - 657

The 7110-657 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7110 caliber with 22j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-53164fb4c11b]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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