Seiko Cal. 6316 - 380

This Spring Drive model from 1968 features a 37mm Two-Tone case. Powered by the 6316 caliber with 22j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-588566c5aa82]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1968

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