Seiko Cal. 3813 - 587

The 3813-587 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3813 caliber with 36j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-e47d7ae2ebbb]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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