Seiko Cal. 5677 - 250

The Seiko 5677-250 represents an important milestone in Seiko's 1980 lineup. Powered by the 5677 caliber with 31j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-0d61a886ffe8]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1980

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