Seiko Cal. 5641 - 676

The 5641-676 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5641 caliber with 29j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-1963f659f814]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1987

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