Seiko Cal. 3891 - 989

Released in 1968, the Cal. 3891 with design code 989 was part of Seiko's domestic market collection. Powered by the 3891 caliber with 20j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-08ecd7061fbd]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1968

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