Seiko Cal. 6138 - 340

The 6138-340 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f5fc7ee630ce]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1974

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