Seiko Cal. 6641 - 535

The Seiko 6641-535 represents an important milestone in Seiko's 1985 lineup. Powered by the 6641 caliber with 35j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-c7fcf47b7f86]

Also known as: Crown, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1985

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