Seiko Cal. 4477 - 747

The Seiko 4477-747 represents an important milestone in Seiko's 1985 lineup. Powered by the 4477 caliber with 22j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-cb37f4d753c7]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1985

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