Seiko Cal. 6687 - 730

The Seiko 6687-730 represents an important milestone in Seiko's 1969 lineup. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-b13a0bb6febf]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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