Seiko Cal. 6121 - 978

The Seiko 6121-978 represents an important milestone in Seiko's 1989 lineup. Powered by the 6121 caliber with 36j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-81fe7f60241d]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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