Seiko Cal. 6660 - 316

Released in 1980, the Cal. 6660 with design code 316 was part of Seiko's domestic market collection. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-cf867afa2a1a]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1980

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