Seiko Cal. 3815 - 657

Released in 1968, the Cal. 3815 with design code 657 was part of Seiko's domestic market collection. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-bccc583cf2b5]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1968

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