Seiko Cal. 3815 - 907

The 3815-907 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3815 caliber with 19j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-af07ce8d8a3a]

Also known as: Turtle, Bellmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1968

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