Seiko Cal. 5610 - 306

This Hand-Winding model from 1980 features a 42mm Gold-Plated case. Powered by the 5610 caliber with 20j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-dcc2ac010b44]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1980

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