Seiko Cal. 7161 - 145

The 7161-145 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ec11e7df19be]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1982

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