Seiko Cal. 5233 - 788

The Seiko 5233-788 represents an important milestone in Seiko's 1965 lineup. Powered by the 5233 caliber with 20j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-24ab0a564c06]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1965

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