Seiko Cal. 3815 - 309

The 3815-309 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ea49b6916ca8]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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