Seiko Cal. 6310 - 304

This Solar model from 1975 features a 42mm Two-Tone case. Powered by the 6310 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-cb04a12b6cd9]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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