Seiko Cal. 5688 - 325

The Seiko 5688-325 represents an important milestone in Seiko's 1965 lineup. Powered by the 5688 caliber with 23j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-fc601acb3d2d]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1965

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