Seiko Cal. 6131 - 789

The Seiko 6131-789 represents an important milestone in Seiko's 1999 lineup. Powered by the 6131 caliber with 33j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-5ec4b3270030]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1999

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