Seiko Cal. 5687 - 726

The 5687-726 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5687 caliber with 26j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-2095378cf4b4]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1980

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