Seiko Cal. 3816 - 509

The Seiko 3816-509 represents an important milestone in Seiko's 1987 lineup. Powered by the 3816 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-c60c421cc31b]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1987

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