Seiko Cal. 7131 - 111

The 7131-111 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-a5f6cf2645db]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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