Seiko Cal. 5621 - 180

The Seiko 5621-180 represents an important milestone in Seiko's 1991 lineup. Powered by the 5621 caliber with 23j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d455b9ea0fdf]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1991

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