Seiko Cal. 3811 - 310

The Seiko 3811-310 represents an important milestone in Seiko's 1973 lineup. Powered by the 3811 caliber with 31j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-5e9b0a2d6845]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1973

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