Seiko Cal. 6361 - 381

The 6361-381 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6361 caliber with 32j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-cc002f8f1ae4]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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