Seiko Cal. 5233 - 438

The 5233-438 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5233 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-aac7aaf3fa8d]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1968

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