Seiko Cal. 5685 - 378

The 5685-378 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5685 caliber with 35j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-602f85c75d72]

Also known as: Samurai, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1966

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