Seiko Cal. 6657 - 935

The 6657-935 is a sought-after Kinetic piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-8b733e24c665]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1975

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