Seiko Cal. 7023 - 310

The 7023-310 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7023 caliber with 27j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-5fd7ae571a84]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1969

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