Seiko Cal. 6687 - 174

Released in 1965, the Cal. 6687 with design code 174 was part of Seiko's domestic market collection. With its 22mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-0ed283deaf66]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1965

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