Seiko Cal. 6657 - 371

The Seiko 6657-371 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-12c01c49d07b]

Also known as: Pogue, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1985

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