Seiko Cal. 6135 - 391

The Seiko 6135-391 represents an important milestone in Seiko's 1979 lineup. Powered by the 6135 caliber with 36j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-df8a80a06fb1]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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