Seiko Cal. 7181 - 409

The Seiko 7181-409 represents an important milestone in Seiko's 1968 lineup. It features a Cream dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-4b9e2b73a0c8]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1968

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