Seiko Cal. 5688 - 651

The Seiko 5688-651 represents an important milestone in Seiko's 1967 lineup. Powered by the 5688 caliber with 31j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-5985bf6aa3ee]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1967

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