Seiko Cal. 6657 - 343

The Seiko 6657-343 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-8d708db1609c]

Also known as: Tuna, Goldfeather

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1979

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