Seiko Cal. 6656 - 731

Released in 1975, the Cal. 6656 with design code 731 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-57f03927a7fc]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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