Seiko Cal. 5641 - 318

Released in 1976, the Cal. 5641 with design code 318 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-e45fcd5838c4]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1976

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