Seiko Cal. 6277 - 306

The Seiko 6277-306 represents an important milestone in Seiko's 1966 lineup. Powered by the 6277 caliber with 36j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-0016a2ee37aa]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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