Seiko Cal. 5640 - 415

The Seiko 5640-415 represents an important milestone in Seiko's 1998 lineup. Powered by the 5640 caliber with 36j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-85a42abd9944]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1998

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