Seiko Cal. 6687 - 536

The Seiko 6687-536 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-202a6e8c33d6]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1970

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