Seiko Cal. 6642 - 234

The 6642-234 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6642 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-eb8f22a96de3]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1986

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