Seiko Cal. 7070 - 331

The 7070-331 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7070 caliber with 23j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-4067ab5d3268]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1999

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