Seiko Cal. 5688 - 310

The Seiko 5688-310 represents an important milestone in Seiko's 1976 lineup. Powered by the 5688 caliber with 17j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-27d48b9d2c21]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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