Seiko Cal. 6361 - 444

The Seiko 6361-444 represents an important milestone in Seiko's 1976 lineup. Powered by the 6361 caliber with 24j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-0467049bb6e8]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1976

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