Seiko Cal. 6658 - 503

Released in 1975, the Cal. 6658 with design code 503 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-d897cc49caf4]

Also known as: Turtle, Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1975

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