Seiko Cal. 5687 - 128

The 5687-128 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2dd28ddafbcc]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1978

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