Seiko Cal. 0731 - 848

The Seiko 0731-848 represents an important milestone in Seiko's 1968 lineup. Powered by the 0731 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-0256b5f664a9]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1968

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