Seiko Cal. 3899 - 726

The Seiko 3899-726 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-555aa4b347f0]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1975

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