Seiko Cal. 3837 - 221

The Seiko 3837-221 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-afc7ebec15c9]

Also known as: Turtle, Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1967

Related Models

• Seiko 6334-778
• Seiko 6318-334
• Seiko 0756-451
• Seiko 3888-173
• Seiko 0755-302
• Seiko 7035-761
• Seiko 5297-198
• Seiko 5623-338
• Seiko 4460-648
• Seiko 0739-822
• Seiko 7172-991
• Seiko 4535-837