Seiko Cal. 6657 - 766

The Seiko 6657-766 represents an important milestone in Seiko's 1985 lineup. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-a93aa6ac388b]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1985

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