Seiko Cal. 3899 - 261

The Seiko 3899-261 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-be2e3d3909a0]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1975

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