Seiko Cal. 5646 - 604

The 5646-604 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5646 caliber with 25j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-31d40002e93d]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1995

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