Seiko Cal. 6315 - 670

The 6315-670 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-322e071498b6]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

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