Seiko Cal. 3851 - 439

The Seiko 3851-439 represents an important milestone in Seiko's 1971 lineup. Powered by the 3851 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-1d558f89fe01]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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