Seiko Cal. 7181 - 406

The 7181-406 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-31ec565e3dbd]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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