Seiko Cal. 5660 - 341

The Seiko 5660-341 represents an important milestone in Seiko's 1970 lineup. Powered by the 5660 caliber with 28j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-7fb210bd657e]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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