Seiko Cal. 6138 - 521

The Seiko 6138-521 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-19f275115448]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1966

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