Seiko Cal. 6240 - 836

This Automatic model from 1970 features a 46mm Two-Tone case. Powered by the 6240 caliber with 25j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-e7c6864e0238]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

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