Seiko Cal. 3817 - 223

The Seiko 3817-223 represents an important milestone in Seiko's 1971 lineup. Powered by the 3817 caliber with 33j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-767e21b7254c]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

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