Seiko Cal. 3818 - 636

The Seiko 3818-636 represents an important milestone in Seiko's 1986 lineup. Powered by the 3818 caliber with 30j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-3a320b3ee553]

Also known as: Sumo, Pogue

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1986

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