Seiko Cal. 5640 - 342

The Seiko 5640-342 represents an important milestone in Seiko's 1984 lineup. Powered by the 5640 caliber with 21j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-806ecd2ca96e]

Also known as: Samurai, Panda

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1984

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