Seiko Cal. 6661 - 687

The Seiko 6661-687 represents an important milestone in Seiko's 1982 lineup. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-607cf7eb6357]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1982

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