Seiko Cal. 6633 - 395

The Seiko 6633-395 represents an important milestone in Seiko's 1978 lineup. Powered by the 6633 caliber with 36j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-369d353d80d4]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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