Seiko Cal. 6138 - 409

The Seiko 6138-409 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-6910ac8177b7]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1976

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