Seiko Cal. 3815 - 651

The 3815-651 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-ca8cc93d448c]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1975

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