Seiko Cal. 7175 - 431

Released in 1975, the Cal. 7175 with design code 431 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-0266fb6cc8f2]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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