Seiko Cal. 6323 - 633

The 6323-633 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6323 caliber with 31j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-b933b05bbb17]

Also known as: UFO, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1968

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