Seiko Cal. 6155 - 831

This Hand-Winding model from 1974 features a 42mm Two-Tone case. It features a Silver dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-fd1ab39a694e]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1974

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