Seiko Cal. 6641 - 395

The Seiko 6641-395 represents an important milestone in Seiko's 1980 lineup. Powered by the 6641 caliber with 21j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-e1220885f4be]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1980

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