Seiko Cal. 5641 - 441

Released in 1990, the Cal. 5641 with design code 441 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-66a0fe7fa62a]

Also known as: Tuna, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1990

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