Seiko Cal. 6180 - 357

The Seiko 6180-357 represents an important milestone in Seiko's 1971 lineup. Powered by the 6180 caliber with 21j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-80d3bb46e31e]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1971

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