Seiko Cal. 6687 - 913

The Seiko 6687-913 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-2fa215e4aff9]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1989

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