Seiko Cal. 6138 - 726

The Seiko 6138-726 represents an important milestone in Seiko's 1970 lineup. Powered by the 6138 caliber with 21j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-01c2393ba2c1]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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