Seiko Cal. 7057 - 431

The Seiko 7057-431 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-faff6c9c9340]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1971

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