Seiko Cal. 3813 - 507

The Seiko 3813-507 represents an important milestone in Seiko's 1987 lineup. Powered by the 3813 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-3fed3880e61d]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1987

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