Seiko Cal. 7057 - 231

The Seiko 7057-231 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-5aa6615df348]

Also known as: World Timer, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1966

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