Seiko Cal. 7133 - 233

The 7133-233 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ebd09acdc542]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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