Seiko Cal. 5645 - 387

The 5645-387 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5645 caliber with 36j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-e89bf09a5c75]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1974

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