Seiko Cal. 6641 - 436

This Hand-Winding model from 1970 features a 46mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-b0a79bf02f2d]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1970

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