Seiko Cal. 5660 - 275

The Seiko 5660-275 represents an important milestone in Seiko's 1972 lineup. Powered by the 5660 caliber with 22j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-1a382e2f3d36]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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