Seiko Cal. 5657 - 549

The 5657-549 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5657 caliber with 18j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-2dd2867bcb9b]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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